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151868425 = 52192313901
BaseRepresentation
bin10010000110101…
…01010000001001
3101120202201022111
421003111100021
5302334242200
623023022321
73522601042
oct1103252011
9346681274
10151868425
11787a8aa5
1242a3a9a1
1325604497
14162538c9
15d4ed0ba
hex90d5409

151868425 has 24 divisors (see below), whose sum is σ = 206861760. Its totient is φ = 110088000.

The previous prime is 151868407. The next prime is 151868441. The reversal of 151868425 is 524868151.

It is a happy number.

It is not a de Polignac number, because 151868425 - 25 = 151868393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3975 + ... + 17875.

It is an arithmetic number, because the mean of its divisors is an integer number (8619240).

Almost surely, 2151868425 is an apocalyptic number.

It is an amenable number.

151868425 is a deficient number, since it is larger than the sum of its proper divisors (54993335).

151868425 is a wasteful number, since it uses less digits than its factorization.

151868425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13953 (or 13948 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 151868425 is about 12323.4907798075. The cubic root of 151868425 is about 533.5262962790.

The spelling of 151868425 in words is "one hundred fifty-one million, eight hundred sixty-eight thousand, four hundred twenty-five".

Divisors: 1 5 19 23 25 95 115 437 475 575 2185 10925 13901 69505 264119 319723 347525 1320595 1598615 6074737 6602975 7993075 30373685 151868425